I saw your message on the United forum. I looked around, but I can't find any United shirts that are bigger than 3XL. Even Nike and United Megastore doesn't have it. The max I found was 3XL in most places.

That is just feeble Manchester United propoganda! Besides, since the likes of Chelsea and Man City have been top spenders, the PL is far more competitive than it was in the 90s, where the title was a foregone conclusion before it had even started. United had a monopoly on the PL for a number of years.

One thing you have failed to realise is that during the years in which Man United were not top spenders, they still spent vast quantities and in fact since the formation of the PL Manchester United have spent the most out of any other club. Also, once thing you should note is that during the 90s United received substantial sums in TV revenue - something that other clubs did not have the benefit of receiving.